Weighing and supplying apparatus



r H. E. SMYSER. WEIGHING AND SUPPLYING APPARATUS- No. 297.027. PatentedApr. 15, 1884.

WITNESSES:

. STATES PATENT OFFICE.

HENRY nsMYsEn, or PHILADELPHIA; PENNSYLVANIA, ASSIGNOR TO THE wninnnaSMITH SPICE COMPANY, or PENNSYLVANIA. I

wslel-ime AND 'SUIPPLYYINIG APPARATUS.

SPECIFICATION forming part of Letters Patent No. 297,027, dated April15, 1884.

it Application filed December 7, 1883. No modeh) 10 all whom/it mayconcern..-

Be it known-that I, HENRY E. SMYSER, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in. Weighing and SupplyingApparatus, which improvement is fully set forth in the followingspecification and accompany-- ing drawings, in which- 1o Figure 1 isafront view, partly broken away and sectional, of an automaticweighingand supplying apparatusembodying myinvention.

Fig. 2isa rear view of aportion thereoft Figs.

3 and 4 are side elevations of detached parts. Similar letters ofreference indicate corresponding parts in the several figures.

My invention consists of means for automatically supplying thetray of'ascale with material to be weighed.

It also consists ofmeans for automatically weighing material supplied toa scale.

It also consists of certain other details of construction. aswill-behereinafter fully set forth.

Referring to the drawings, A represents a table or support .for parts ofthe apparatus embodying my invention.

B represents a closed casing which rises from the table A, and haswithin it a conveyer, G, formed of an endless chain, with buckets orcups connected thereto, the same being sup ported on an operating-shalt,a, and is passed through openings in the table and dips into a supplypan or box, D, located beneath the table, said shaft or being mounted onthe upper part of the casing B, andsaid box properly inclosed. I

E represents a hopper, which is secured to the casing B, and its upperend is within said casing,between the lengths of chain of the conveyer0.

To the baseof the hopper E is attached a chute, F,which passes throughthe table A and has its lower end over the supply-pan D.

At the top of the chute F, at one side thereof, is a throat, G, it beingnoticed that said top is deflected laterally from the base ofv thehopper, so "that the bottom opening of the hopper E and said throat Gform somewhatof a continuous passage, causing material dropit is againconveyed to the hopper.

ping from said opening to enter said throat, and thus escape. Saidthroat may, however, be at the side of the base of the'hopper E. v

H represents a scale, which is properly mounted on-the table A, the beamH being of 5 any suitable construction. 1 H represents the tray of thescale,thesame being pivoted to standards or supports rising from oneend, of the scale-beam, so that it may be tilted or swung downwardly inorder to be discharged of its contents, as most clearly shown in Fig.4:.

Rising from and secured to the scale-beam isan arm, J, the upper end ofwhich extends toward the throat G, and isprovided with a 6 cut-ofl'plate or valve, K, which is adapted to be projected across said throatand close the same, as shown in Fig. 1, it being noticed that the trayof the scale is located beneath said throat and cut-off'plate. The pan Dis prop- 7O erly supplied with material and power applied to the shafta, whereby the conveyer is operatedand the material raised to the top ofthe casing B, overturned, and caused to drop into the hopper E. Thescale having been previously adjusted to weigh the required amount, hasits tray elevated and the cut-off plate K removed from the throat G. Thematerial having now passed through the hopper, reaches the throat andescapes therethrough 3 in a gentle stream to the tray of the scale, Asthe .tray slowly descends, th plate K is gradually advanced across thethroat by the movement of the scale-beam, and when. the precise quantityof material is weighed the 3 plateK completely closes the throat, havingaccomplished the same without abruptness.

The material in the'hopper now falls on the plate K, and is therebydeflected into the chute F, so as to return to the pan D, from whence 0The tray is now cleared of its contents and quickly returned, and, beingempty, is raised by the scale-beam, the plate K also. moving to aposition uncovering the throat G, whereby the material is again directedinto the tray and automatically weighed, after which the stream is outoff and returned to the supply-pan, as previously stated.

As stated above, the action of the'plate K I00 closing the throat G iswithout abruptness. This is more particularly accomplished by making thecounter weight or balance of parts fitting each other telescopically, sothat when the tray is empty and raised the lower part,

H', of the counter-balance rests on a platform or shelf, 1 withoutexerting its weight on the beam. balance is made hollow and has aninternal shoulder, and the other part is formed with a stem having aT-head, which latter comes in contact with theshoulder when the upperpart is partly raised by the beam, and isthereby also raised. \Vhen thetray receives almost all of its load, then the lower part of thecounter-balance is raised, thus serving to check the or dog, M, which ishung to an elbow-lever,

N, towhich power is imparted by a rod, P, attached ,to acrank-wheel, Q,or other proper movable member of the apparatus. said wheel being gearedwith, the driving-pulley R, and keyed or otherwise secured to the shafta.

Having thus-described my invention, what I claim as new, anddesire tosecure by Letters Patent, is

1. A hopper provided witha. chute which is permanently uncovered. and anadditional dischar'gethroat or outlet, in combination with weighingdevices which automatically cut ofi the supply of. grain through saiddischarge throat or outlet whenever a certain quantity has been weighed,substantiallyas set forth.

2. A hopper provided with a permanentlyopen chute and an additionaldischarge throat or outlet, in combination with a plate, .K, adapted toslide across said throat and clear it, a scale-pan arranged to receivethegrain from said throat, and a scalebeam and conmeeting-rods throughwhich the descent of said One part of the counter weight or I pangradually moves said plate across said throat or outlet and closes thesame, substantially as set forth.

3. A supply-pan and an e'ndless conveyer for raising the materialtherefrom, in combination with a hopper which is fed by said conveyerand discharges into said pan, and automatic weighing devices, which aresupplied through an independent outlet or discharge- "throat of saidhopper and operate to close the same when a certain quantity has beenweighed, without closing the outlet whereby said hopper discharges intosaid supply-pan. 4. A supply-pan and an endless eonveyer operatingtherein, in combination with means for imparting rotary motion to saidpan, sub- 'stantially as and for the purpose set forth. 1

5. A hopper provided with a chute which is permanently uncovered, and anadditional discharge throat or outlet, in combination with weighingdevices which automatically cut oh the supply of grain through saiddischarge throat oroutlet whenevera certai u quantity has been weighed,and a counterbalance-weight controlling said devices and consisting oftwo sliding parts, operating substantially as set forth.

6. A hopper provided with a permanently open ch uteand an additionaldischarge throat or outlet, in combination with a plate adapted throat,a scale-beam and connecting-rods through which the descent of said pangradually moves said plate across said throat or outlet and closes thesame, and a count-erbalance-weight controlling'said devices con sistingof two sliding parts, substantially as and for. the purpose set forth.

7. The combination, with an automatic ,weighing and supplying'device, ofa counterbalance-weight consisting of an upper constant part. 11', and alower part, H, onepart being hollow and internally shouldered, and theother part havinga connecting-stem formed with aT-head, substantially asand for the purpose set forth.

v H. E. SMYSER.

Witnesses:

Join: A. WIEDERSHEIM,

A. P. GRANT.

to slide. across said throat and close it, aseale; pan arranged toreceive the grain from said

